The chief chemicals used for the manufacture of paper are:
| A. | Calcium bisulphate and Caustic soda |
| B. | Caustic soda and Sodium sulphate |
| C. | Calcium bisulphate and Sodium sulphate |
| D. | Caustic soda, Sodium sulphate and Calcium bisulphate |
|
Option: D Explanation : Click on Discuss to view users comments. |
World's leading producer of fertilizers is
| A. | U.K. |
| B. | India |
| C. | U.S.A. |
| D. | U.S.S.R. |
|
Option: C Explanation : Click on Discuss to view users comments. |
Philadelphia in U.S.A. is famous for
| A. | Iron and Steel industry |
| B. | Locomotive industry |
| C. | Ship building industry |
| D. | Heavy Electrical industry |
|
Option: B Explanation : Click on Discuss to view users comments. |
